Hi,
some people tried out our keyboard music making program which you can install from my github:
https://github.com/linse/keymusixCheck out the algomap branch from github, and you also need leiningen/clojure and overtone (both on github or mac homebrew etc).
Then go into the project folder and enter "lein run". On Mac you also have to enable "universal access->enable access for assistive devices" in you settings.
Overtone downloads piano samples on first run, be patient.
Have fun with your new musical keyboard :)
Steffi